Howard Leight by Honeywell - R-01204 Laser Lite High Visibility Disposable Foam Earplugs, Pack of 1 (50 Pairs),Yellow

I love Howard Leight ‘Laser Lite’ earplugs. I tried a dozen different earplugs, from the basic yellow foam cylinders to custom molded, to noise canceling earbuds. These have great noise attenuation, are comfortable on long rides, easy to get in and out, and are cheap. https://a.co/d/08Q8rri7

These were a game changer for me: https://a.co/d/03S9qjhu

Another thing to try: use ear plugs (not ear buds), something like this to block out sound This has been my secret weapon to focus